[Bug fortran/32140] [4.3 Regression] Miscompilation with -O1

[jv244 at cam dot ac dot uk]

------- Comment #2 from jv244 at cam dot ac dot uk  2007-05-29 15:41 -------
I assume this is another incarnation of this bugs but leads to a segfault and a
slightly different valgrind output:

MODULE TEST
CONTAINS
PURE FUNCTION s2a_3(s1,s2,s3) RESULT(a)
    CHARACTER(LEN=*), INTENT(IN)             :: s1, s2, s3
    CHARACTER(LEN=1000), DIMENSION(3)        :: a

  a(1)=s1; a(2)=s2; a(3)=s3
END FUNCTION
END MODULE

USE TEST
character(LEN=80) :: b(3)
b=s2a_3("Distribution by marix blocks", "Distribution by matrix rows",&
         "Distribution by matrix columns")
write(6,*) b(3)
END

==21561==    at 0x4A21AF0: memset (mc_replace_strmem.c:490)
==21561==    by 0x400A8B: __test_MOD_s2a_3 (in /users/vondele/g95/a.out)
==21561==    by 0x40089D: MAIN__ (in /users/vondele/g95/a.out)
==21561==    by 0x400B4B: main (fmain.c:22)
==21561==  Address 0x7FF005B80 is not stack'd, malloc'd or (recently) free'd
==21561==
==21561== Process terminating with default action of signal 11 (SIGSEGV)
==21561==  Access not within mapped region at address 0x7FF005B80
==21561==    at 0x4A21AF0: memset (mc_replace_strmem.c:490)
==21561==    by 0x400A8B: __test_MOD_s2a_3 (in /users/vondele/g95/a.out)
==21561==    by 0x40089D: MAIN__ (in /users/vondele/g95/a.out)
==21561==    by 0x400B4B: main (fmain.c:22)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32140